@Grumpyfrog: Where did you purchase your S10+ from? It may be the case that the phone wasn't intended for use in your current region, which might explain why you're not receiving updates. As advised above, you may wish to try installing Smart Switch on your home computer if you're currently unable to receive updates via your network. To begin with, follow the link below, click on 'How Do I Get Smart Switch On My PC or Mac' and download the relevant version. Once installed, open Smart Switch, connect your phone using the USB cable that came with the device and look for an update prompt on the landing page, next to your device details.